Mercurial > hg > early-roguelike
annotate xrogue/xcrypt.c @ 228:b67b99f6c92b
Daemons and fuses now return void.
Functions for starting and stopping daemons and fuses now expect the
type 'void (*func)()'. Only a few functions in XRogue needed to be
modified to fit. Determining the type of the argument is left for a
later date.
Building with GCC5 should now produce less than 200 lines of warnings
per game.
| author | John "Elwin" Edwards |
|---|---|
| date | Sat, 05 Mar 2016 20:49:37 -0500 |
| parents | 3def5e487faa |
| children | e52a8a7ad4c5 |
| rev | line source |
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1 /* |
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2 * FreeSec: libcrypt |
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3 * |
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4 * Copyright (C) 1994 David Burren |
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5 * All rights reserved. |
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6 * |
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7 * Redistribution and use in source and binary forms, with or without |
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8 * modification, are permitted provided that the following conditions |
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9 * are met: |
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10 * 1. Redistributions of source code must retain the above copyright |
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11 * notice, this list of conditions and the following disclaimer. |
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12 * 2. Redistributions in binary form must reproduce the above copyright |
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13 * notice, this list of conditions and the following disclaimer in the |
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14 * documentation and/or other materials provided with the distribution. |
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15 * 3. Neither the name(s) of the author(s) nor the names of other contributors |
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16 * may be used to endorse or promote products derived from this software |
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17 * without specific prior written permission. |
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18 * |
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19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND |
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20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE |
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23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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29 * SUCH DAMAGE. |
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30 * |
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31 * |
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32 * This is an original implementation of the DES and the crypt(3) interfaces |
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33 * by David Burren <davidb@werj.com.au>. |
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34 * |
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35 * An excellent reference on the underlying algorithm (and related |
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36 * algorithms) is: |
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37 * |
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38 * B. Schneier, Applied Cryptography: protocols, algorithms, |
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39 * and source code in C, John Wiley & Sons, 1994. |
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40 * |
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41 * Note that in that book's description of DES the lookups for the initial, |
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42 * pbox, and final permutations are inverted (this has been brought to the |
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43 * attention of the author). A list of errata for this book has been |
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44 * posted to the sci.crypt newsgroup by the author and is available for FTP. |
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45 * |
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46 * NOTE: |
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47 * This file has a static version of des_setkey() so that crypt.o exports |
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48 * only the crypt() interface. This is required to make binaries linked |
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49 * against crypt.o exportable or re-exportable from the USA. |
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50 */ |
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51 |
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52 #include <sys/types.h> |
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53 #include <string.h> |
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54 |
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55 #define _PASSWORD_EFMT1 '_' |
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56 |
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57 unsigned long int md_htonl(unsigned long int x); |
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58 unsigned long int md_ntohl(unsigned long int x); |
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59 |
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60 static unsigned char IP[64] = { |
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61 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, |
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62 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, |
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63 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, |
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64 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7 |
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65 }; |
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66 |
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67 static unsigned char inv_key_perm[64]; |
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68 static unsigned char key_perm[56] = { |
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69 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, |
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70 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, |
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71 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, |
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72 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 |
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73 }; |
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74 |
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75 static unsigned char key_shifts[16] = { |
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76 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 |
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77 }; |
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78 |
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79 static unsigned char inv_comp_perm[56]; |
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80 static unsigned char comp_perm[48] = { |
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81 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, |
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82 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, |
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83 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, |
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84 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32 |
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85 }; |
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86 |
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87 /* |
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88 * No E box is used, as it's replaced by some ANDs, shifts, and ORs. |
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89 */ |
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90 |
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